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pulley noise with video. help please.

922 views 6 replies 4 participants last post by  Tasogare 
#1 ·
01 eclipse spyder gt 150k miles
Timing done less then 5k miles ago.
Started making this noise this morning. Any help in identify the problem would be appreciated.
http://youtu.be/OW0gLws0pP8
Vid is not slow mo even though I recorded it on slow mo. Sorry for the confusion
Noise video: Noise video - YouTube
 
#4 ·
Without anyone else offering advice yet, I will offer this, you need to isolate the sound. Find out exactly where it is coming from. There are a few rotating parts in there. Gotta figure out which one is making the sound. I can't do it for you, would if I could, but you gotta get in there and listen. This approach can be applied to any vehicle, so that's where I'm coming from. Could be a belt off track, a pulley bearing going bad (as mentioned), etc. Does the frequency of that sound increase with RPM's? If so, that narrows it down even more to one of the rotating parts. Speaking generically here, not specific to the Eclipse.
 
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